var util = {
	getJSON: function(url, callback){
		window.jsonp123456 = callback;
		var ele = document.createElement("script");
		ele.src=url+"?callback=jsonp123456";
		document.head.appendChild(ele);
	},
	inArray: function( elem, arr) {
		var len;
		var i = 0;

		if ( arr ) {
			len = arr.length;
			for ( ; i < len; i++ ) {
				// Skip accessing in sparse arrays
				if ( i in arr && arr[ i ] === elem ) {
					return i;
				}
			}
		}

		return -1;
	},
}